[Trigger] damage when missile of spells hits the target

[Qrom Bellascream]

Title explains it, for example, i have the Storm Bolt ability, and i want something to happen when the missile model hits it's target. How can i do that if it even is possible in GUI?

 

[Flux]

Try searching for Missile systems that fits your needs. I can't recommend you any because I haven't tried one yet but I believe missile systems is the answer to your problem.
It is possible to do it in GUI though I'm not sure if an existing GUI missile system is available since it is easier to do it in Jass..

 

[Arad MNK]

Maybe Making the Storm Bolt ability Based on channel and use the Storm Bolt Missile as a Dummy unit?

 

[EdgeOfChaos]

Check for stun buff, remove it, re-apply a different stun, and do whatever unique thing you want.

 

[SAUS]

It may be a bit of a hack, but you can also do this with a damage detection system.

If you have a dummy cast the actual spell (you could have a 0-damage finger of death with no animation on the unit who casts the spell), you could check for when the dummy deals damage and then apply additional effects.

It could get pretty messy if you need data from the unit that casts it, though.

 

[nedio95]

Ehem, execus me good sirs and ladies but does not

• Unit - Starts the effect of an ability

run when the missile hits the target as the OP explained ? Why are you all giving complicated stuff like DDS, and buff checking, and other when there is a simple and very easy to do thing.


Just make an ability based on channel and use

• Event
  • Unit - Starts the effect of an ability
• Condition
  • Ability being cast equal to TheDummySpellBasedOnChannel
• Action
  • Drop teh bass

Edit// Ah, this is if the stun is not wanted as Storm Bolt always stuns ( a stun duration of 0.00 is an infinite stun)
If you want some stun to the spell use Storm Bolt and replace "TheDummySpellBasedOnChannel" with "TheModifiedStormBoltYouJustMade"

 

[TKF]

Title explains it, for example, i have the Storm Bolt ability, and i want something to happen when the missile model hits it's target. How can i do that if it even is possible in GUI?

There is 2 effective ways of checking if storm bolt is hitting a unit

• Detect Damage, which is a bit of a hazzle if you have little experience with editor and you need a damage detection trigger/system.

or for a novice mapper

• Check for buff. Add target a a group in cast trigger, check for storm bolt buff every 0.05 sec in a second trigger, when it has the stun buff (I recommend create a new buff unique to that ability, since many abilities use same stun buff), then apply something to happen to that unit and remove the unit from unit group.

Trigger example GUI

• Cast Storm Bolt
  • Events
    • Unit - A unit Starts the effect of an ability
  • Conditions
    • (Ability being cast) Equal to Storm Bolt
  • Actions
    • Set StormBoltCastCounter = (StormBoltCastCounter + 1)
    • -------- StormBoltCastCounter (Integer - variable) --------
    • Unit Group - Add (Target unit of ability being cast) to CheckForBuff
    • -------- CheckForBuff (Unit Group - variable) --------
    • Trigger - Turn on Storm Bolt Buff Check <gen>
    • Wait - 10 seconds
    • Set StormBoltCastCounter = (StormBoltCastCounter - 1)

• Storm Bolt Buff Check
  • Events
    • Time - Every 0.05 seconds of game time
  • Conditions
  • Actions
    • Unit Group - Pick every unit in CheckForBuff and do (Actions)
      • Loop - Actions
        • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
          • If - Conditions
            • ((Picked unit) has buff Stunned Special) Equal to True
          • Then - Actions
            • Unit Group - Remove (Picked unit) from CheckForBuff
            • -------- Do your trigger stuff here, what effect you wan --------
          • Else - Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • StormBoltCastCounter Equal to 0
      • Then - Actions
        • Trigger - Turn off (This trigger)
      • Else - Actions

 

[Wietlol]

There are two ways to do it.

1, Use a DDS.
With this tool, you can catch the moment when a unit takes damage.
When that happens, you check if the target has the buff "stun" and if he has, the damage is dealt via the Storm Bolt.
However there is one problem.
This will mean that you have to remove the storm bolt buff immediately.
You will have to do the stun yourself. For that you can use a stun system.

2, use a Missile System.
This option is much more recommended as it
1, opens a lot of more possibilities.
2, doest require additional stuff (custom stuns, etc)
3, will learn you how to use systems like these.
A missile system creates a new missile and it will move to the target.
When it hits the target, you are given an onHit event on which you can do whatever you want to the target.

 

[SAUS]

Ehem, execus me good sirs and ladies but does not

• Unit - Starts the effect of an ability

run when the missile hits the target as the OP explained ? Why are you all giving complicated stuff like DDS, and buff checking, and other when there is a simple and very easy to do thing.


Just make an ability based on channel and use

• Event
  • Unit - Starts the effect of an ability
• Condition
  • Ability being cast equal to TheDummySpellBasedOnChannel
• Action
  • Drop teh bass

Edit// Ah, this is if the stun is not wanted as Storm Bolt always stuns ( a stun duration of 0.00 is an infinite stun)
If you want some stun to the spell use Storm Bolt and replace "TheDummySpellBasedOnChannel" with "TheModifiedStormBoltYouJustMade"

Does it work like this with Channel? I haven't used channel for anything yet.

As for storm bolt, "Unit - Starts the effect of an ability" gets when the storm bolt is released, not when it hits. AFAIK, there is no super easy way to detect when a missile hits. Easiest, imo, is damage detection.

 

[Chaosy]

I think I know an OK way to do this without advanced systems.

Check missile speed in object editor.
When storm bolt (any missile spell) is cast start a timer that lasts for distance to target / missile speed. When timer ends, do stuff.

The only issue here is that if the unit moves it will be slightly invalid.

 

[Wietlol]

An "OK" way?

Rather a workaround to try things that should not be done.

 

[Chaosy]

If it works it aint stupid. Seriously it isn't a totally bad solution unless there are a lot of TP abilities in game.

 

[Flux]

If it works it aint stupid. Seriously it isn't a totally bad solution unless there are a lot of TP abilities in game.

Or Blink, Knockback, Swap, Dodging via Invisibility, etc.

 

[Chaosy]

With other words it works everything that isn't an AOS. (take that with a grain of salt)

I just feel like it's lame to download a system (or code your own) just deal damage at the correct time. That's why I wanted to suggest an easier solution.

 

[Wietlol]

I understand you point Chaosy... but still it sounds stupid:
"I just feel like it's lame to download a system (or code your own) just deal damage at the correct time."

 

[Chaosy]

According to to me spending an hour to code a missile system to deal damage half a second (give or take) later is not worth the effort unless you're aiming for a DC.

There are better things to spend time on. Might worth it to download an existing one if you plan to use it for a lot of spells, but since I don't know the situation, I can only guess.